Let me preface this suggestion by saying that the Nationwide Geographic Break Open 10 Premium Geodes set does contain some dedication. However for a bunch of budding geologists (or any youngsters who assume it could be cool to see the within of a rock), the payoff is price it. You’ll want some security goggles and an excellent hammer; we used this Estwing Rock Choose, for a little bit further stability and precision, however any strong hammer ought to be fantastic. In contrast with a few of the generic geode units on the market—like this one we examined, which supplied 20 stones—the Nat Geo set comes with solely 10 rocks. However these 10 rocks have been sizable, and the crystals revealed inside boasted a much more dazzling array of colours, shapes, and sizes than the snowy white crystals we discovered over and over within the generic set. (In the event you’re internet hosting a bigger crew, there’s additionally a Nationwide Geographic Break Open set with 15 geodes; it’s featured in our information to the greatest items for 7-year-olds.) Relying on the ages—and proclivities—of your celebration visitors, they might want to look at you smash open the rocks, or they might wish to strive it themselves. In our household, even our then-4-year-old requested to take some hits. (Simply you should definitely insist on the protecting goggles.) In spite of everything that hammering, you may ship every child residence with a shiny rock specimen—a reasonably badass solution to finish a party, if you happen to ask me.